Use of Lidar in the USACE

Charlene Sylvester

USACE Mobile District, Spatial Data Branch / Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX)

GIS Day in Vicksburg

March 15, 2012

Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) and USACE National Coastal Mapping Program (NCMP)

Lidar use in USACE

Coastal Regional Sediment Management

Shore Protection

Environmental Restoration

Inland Overland flooding analysis

Assessment of river bank slide-in

Agenda

Joint Airborne Lidar Bathymetry

Technical Center of Expertise

OPERATIONS

RESEARCH AND

DEVELOPMENT

Annual Technical Workshop June 2012, Chicago

Sensors

and

systems

SOPs Collection

Areas

Data

Exploitation

National Coastal Mapping Program

Data Products

• *ASCII XYZ

• Aerial photos

• Zero contour

• Aerial photo mosiacs

• 1-meter bathy/topo DEM

• *LAS format topo

• 1-meter bathy/topo bare earth DEM

• Hyperspectral image mosaics

• Laser reflectance images

• Basic landcover classification

• Volume change

Number of times

surveyed since 2004

One Time Two Times Three Times

Four Times Five Times

Tour de USACE lidar use

Detroit District (LRE) FEMA Great Lakes Coastal Flood Hazard Mapping Program Extract lidar-derived cross-shore elevation transects for incorporation into CSHORE

modeling of flood hazard elevations

2008 NCMP Lidar: Holland, MI

Improved resolution of:

Runup calculations

Morphology predictions

Flood hazard elevations

POC: Greg Mausolf

Buffalo District (LRB) Lake Erie Regional Sediment Management Calculate difference between Digital Elevation Models (DEMs) to

assess sediment accumulation at Dunkirk Harbor, NY

POC: Weston Cross

New England District (NAE)

Source: USACE JALBTCX NCMP

Aerial Photo: MA GIS, 2008

Coordinate Reference: State Plane MA Mainland meters Elevations: meters, NAVD88

1998 2007 2010 2011

Newburyport Harbor and Merrimack River, MA Assess inlet morphology change to support development of a long-term sediment

management plan

POC: Irene Watts

New England District (NAE) Truro, MA Study the feasibility of re-establishing a historic inlet between Cape Cod Bay and

Pilgrim Lake using the USACE Coastal Modeling System (CMS)

2010 NCMP Lidar: Provincetown and Truro, MA

Pilgrim Lake

Inlet Alternative

(CMS Modeling)

Morphology Change Plot:

Warmer colors; accretion

Cooler colors; erosion Existing Ebb Shoal

via Culvert Opening

(MA GIS, 2008)

POC: Irene Watts

New England District (NAE) Nantasket Beach (Hull, MA) Examine impacts of seawall on beach erosion

Project Location

POC: John Winkelman

New England District (NAE) Nantasket Beach (Hull, MA) Extract lidar profiles coincident with historical profile data to facilitate volume change

calculations over the active beach zone

POC: John Winkelman

-40

-30

-20

-10

0

10

20

0.0 500.0 1,000.0 1,500.0 2,000.0 2,500.0 3,000.0

Ele

va

tio

n (ft

-NA

VD

88

)

Distance from Base Point (feet)

Nantasket Beach Profile1963, 2005, and 2010 Comparison (2005 Profile #3)

1963 Profile #16 (Profile #3 in 2005 Survey)

2005 Profile #3

2010 Profile #3

2010

NCMP

Lidar

Baltimore District (NAB) Delaware Army National Guard Bethany Beach Training Site

POC: Jared Scott

Utilize lidar DEMs to support environmental assessments for military construction

projects in a known 100-year floodplain

2010 NCMP Lidar: Bethany

Beach, DE

Existing Conditions Proposed Conditions

ftp://ftp.usace.army.mil/usace/nab/LiDAR/BBTS_FloodWaiver_Report.pdf

Baltimore District (NAB) Alexandria, VA

POC: Jared Scott ftp://ftp.usace.army.mil/usace/nab/LiDAR/AlexandriaVA_HooffsRunFlooding_Jun09.pdf

Army Geospatial Center 1-m DEM FLO2D Results

Utilize lidar DEMs to complete an overland flooding analysis for a 100-year flood

Jacksonville District (SAJ) West Coast of Florida Regional Sediment System

POC: Kelly Legault

Regional, interconnected sediment system requires data and analysis tools that

work in a regional context

Jacksonville District (SAJ) USACE NCMP Regional Lidar Coverage

2010 NCMP Lidar

2006 NCMP Lidar

Extract lidar profiles from 2006 and 2010 regional lidar datasets to facilitate volume

change calculations over the active beach zone in Sarasota County, FL

POC: Kelly Legault

Jacksonville District (SAJ) Sarasota County, FL

POC: Kelly Legault

Use lidar for ebb

shoal volume

calculations and as

input for CMS

modeling

2010 NCMP Lidar

Big Pass

Mobile District (SAM) Black Warrior and Tombigbee River System, AL Assess impact of a 2009 river bank slide-in along a dike encompassing the Ophelia

Upland Disposal Area at river mile 329

POC: Glen Greiner

Slide-in

Mobile District (SAM) Black Warrior and Tombigbee River System, AL Assess impact of a 2009 river bank slide-in along a dike encompassing the Ophelia

Upland Disposal Area at river mile 329

Seattle District (NWS) Shoalwater Dune Restoration Project

Pre-breach imagery

Post-breach: July 2010 NCMP imagery

Existing Pile Dike

Active Erosion Area

Littoral drift

plugging east inlet and

forcing inlet toward shoreline POC: David Michalsen

Use lidar to support numerical modeling of

flow conditions with and without dune

restoration

Seattle District (NWS) Shoalwater Dune Restoration Project

Peak Ebb tide velocities Peak Flood tide velocities

Without dune restoration

Red = high velocity

Blue = low velocity

POC: David Michalsen

Peak Ebb tide velocities Peak Flood tide velocities

Shoalwater Dune Restoration Project

With dune restoration

Red = high velocity

Blue = low velocity

Seattle District (NWS)

POC: David Michalsen

Honolulu District (POH) Surge and Wave Island Modeling Studies

HAKOU-2010-r01 Model

Compile a comprehensive

bathymetric data set on a

regional scale that includes

increased resolution in coastal

areas

Support state-of-the-art

wave modeling studies for

planning and real-time

hurricane emergency

management

POC: Tom Smith

Surge and Wave Island Modeling Studies

Honolulu District (POH)

Assessment of wave energy attenuation as a

function of bottom roughness

POC: Tom Smith

Honolulu District (POH) Reef Mapping Imagery draped over lidar is used to understand spurs and grooves in reefs where

different species would be found

1999 NCMP Lidar and Imagery: Ala Moana Beach Park, Oahu, HI POC: Benton Ching

JALBTCX performs operations, R&D in airborne bathymetric lidar and complementary technologies in support of navigation, regional sediment management and environmental monitoring requirements of USACE.

Lidar (and imagery! Hyperspectral!) use in USACE is expanding and supports a variety of inland and coastal applications.

Exploitation of these data streams results in sophisticated information products that should be delivered in an easily ingestible and understood form (i.e. web services and web applications).

Summary

Acknowledgements

jalbtcx@usace.army.mil

LRE: Greg Mausolf

LRB: Weston Cross

NAE: Irene Watts and John Winkelman

NAB: Jared Scott

SAJ: Dave Robar and Kelly Legault

SAM: Glen Greiner and Mike McBurney

NWS: Dave Michalsen

POH: Benton Ching and Tom Smith